1 files changed, 26 insertions, 0 deletions
diff --git a/test/Analysis/CFLAliasAnalysis/basic-interproc-ret.ll b/test/Analysis/CFLAliasAnalysis/basic-interproc-ret.ll
new file mode 100644
index 000000000000..d56a4552b51e
--- /dev/null
+++ b/test/Analysis/CFLAliasAnalysis/basic-interproc-ret.ll
@@ -0,0 +1,26 @@
+; This testcase ensures that CFL AA gives conservative answers on variables
+; that involve arguments.
+
+; RUN: opt < %s -cfl-aa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s
+
+; CHECK:     Function: test
+; CHECK: 4 Total Alias Queries Performed
+; CHECK: 3 no alias responses
+; ^ The 1 MayAlias is due to %arg1. Sadly, we don't currently have machinery
+; in place to check whether %arg1 aliases %a, because BasicAA takes care of 
+; that for us.
+
+define i32* @test2(i32* %arg1) {
+  store i32 0, i32* %arg1
+
+  %a = alloca i32, align 4
+  ret i32* %a
+}
+
+define void @test() {
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %c = call i32* @test2(i32* %a)
+
+  ret void
+}